Leethal’s post on using Kool-Aid and a slow cooker to dye yarn was very helpful the first time I dyed yarn. She uses multiple colors to produce variegated yarn–a technique I haven’t been brave enough to try yet.

It’s hard to see how the color in your dye pot will translate to yarn, but the DyeYourYarn.com has formulas for Kool-Aid, Wilton, and McCormick along with pictures of yarn samples. They also have a wide array of videos and tutorials for branching out.